226710 / SBR [TV]

• Visible black, unsynchronised TXT klok.
• No colour. (part of circuit diagram displayed)
• Raster IC defective after some time. (extract of circuit diagram attached)
• Every 2-3 days TR7162 (BU508V) is destroyed.
• Picture is erased at 8-10 sec intervals. (+ extract of circuit diagram)
• Lines at the top of the picture depending on the picture content. (+ extract of circuit diagram)
• No function, no sound, no display and no HT. Only a faint switch-on thud in speakers. (226710 tip from SBR)
• Output signal is occasionally O/C when shown on oscilloscope.
• Vertical blanking interval still visible in picture after program switch over. (part of circuit diagram displayed)
• Poor horizontal fringy picture. (picture attached)
• Blank raster. (part of circuit diagram displayed)
• Fine horizontal lines on picture, particularly during channel switch-over. Occasionally vertical sync. does not fit in with screen.
• Dark picture. Audio OK . (picture attached)
• Line pulling/frame jitter. (picture attached)
• Only half of picture visible. (+ extract of circuit diagram) (service info for SBR -226710)
• Cycles on/off.
• Set intermittent dead, when faulty E1 displayed. (with circuit diagram extract)
• Predominance of one of the three colours (red, green or blue).
• Reduced horizontal size. (with circuit diagram extract)
• Too little brightness after DIM command (CDI use). (+ extract of circuit diagram) (226710 tips)
• BU826 and main fuse are defective. When starting after replacement, the power supply hiccups once and is defective again. (extract of circuit diagram attached)
• TDA3650 fails after one week. (picture attached)
• Herringbone pattern on raster. High channels are not accepted when tuned.
• Repeated failure of BU508A line output transistor. (extract of circuit diagram attached)
• Line deflection BU508V blows.
• No colour when the appliance is switched on (cannot be programmed through memory), picture is dark.
• Horizontal deflection is poor. (with circuit diagram extract)
• No line drive to line output transistor (part of circuit diagram displayed)
• Picture runs from left to right, especially on bright pictures.
• Sound becomes lower after switch on. (extract of circuit diagram attached)
• No function. No start up. (SOPS, IV-F-3). (with circuit diagram extract)
• Error codes. (picture attached)
• No raster. Audio OK . (picture attached)
• Dead (intermittently). Squealing from PSU. (part of circuit diagram displayed)
• Excessive horizontal size. at top. (part of circuit diagram displayed)
• Horizontal power stage squeaks.
• White lines, no focus, too much brightness. 15cm in the middle of the picture. (+ extract of circuit diagram)
• No raster. (picture attached)
• 300V from power supply.
• No picture (intermittently). (picture attached)
• No E/W correction. at bottom. (with circuit diagram extract)
• Very faint raster. (with circuit diagram extract)
• Dark picture. (picture attached)
• No red. (+ extract of circuit diagram)
• Instable picture. Picture height and picture width change depending on the volume. Picture folds over at the top.
• The TXT info appears at top of picture when cold. OK after 5 mins. (with circuit diagram extract)
• Picture rolls. (part of circuit diagram displayed)
• Distorted picture at high white proportion. (extract of circuit diagram attached)
• Repeated power supply failure. (with circuit diagram extract)
• No picture. Audio OK . (+ extract of circuit diagram)
• The picture is nearly or completely invisible if a CDI player is connected on K40 full SCART (RGB) and the screen dimmer is activated. (with circuit diagram extract)
• Pincushion effect on vertical straight lines. (part of circuit diagram displayed)
• Voltage slightly high. (+ extract of circuit diagram)
• No line drive. (extract of circuit diagram attached)
• Transistors TR7131, TR7122 and TR7123 blown. (picture attached) (service info for SBR -226710)
• Total loss of memory immediately after CTV is switched off (brightness, colour, contrast, sound and channels). (part of circuit diagram displayed)
• Teletext only shows a green notice "P100" running on the screen, or Teletext is displayed but out of sync.
• Does not stop at S channels during station search. Appliance should be suited to do so.
• Set does not go to standby although the LED is lit up. (+ extract of circuit diagram)
• LED display goes off after a few minutes. If the channel is changed however, either using the remote control or the buttons on the set, display return for a few minutes.
• Horizontal jitter. (+ extract of circuit diagram)
• Poor focus. (extract of circuit diagram attached)
• Flashover then weak contrast. (extract of circuit diagram attached)
• Horizontal lines (TXT data) on the top part of the picture. (extract of circuit diagram attached)
• Start up from standby after 2 secs. (+ extract of circuit diagram)
• TV switches to standby after approx 30 mins. E3 in display. (+ extract of circuit diagram)
• Flyback lines. in PB. (+ extract of circuit diagram)
• Switches to standby (intermittently). (with circuit diagram extract)
• Lines in picture. at top . (part of circuit diagram displayed)
• Intermittently dead. (+ extract of circuit diagram)
• E/W-error, trapezium distortion. (extract of circuit diagram attached)
• PSU whistles. Line output transistor BU508 fails (S/C).
• Adjustment.
• Picture width twitches. Beam current dependent. (extract of circuit diagram attached)
• No picture. Loud fizzling noise from line deflection. (+ extract of circuit diagram)
• Whines loudly at switch on and will not start up. (+ extract of circuit diagram)
• Poor closure of function door.
• C/P button on the front control does not function.
• After switch on program display P1, then E1. No functions. (part of circuit diagram displayed)
• Picture darkens (after disappearance of green bar) after tuning and storing channel in memory. No adjustment possible.
• Poor picture. (extract of circuit diagram attached)
• Horizontal lines across the picture, sometimes picture content in the middle of the screen disappears (then black bars across the picture). (picture attached)
• Frequency divider 4822 212 21226. (226710 SBR repair tip)
• No picture, no sound, power supply squeaks because thyristor 6171 conducts. By temporarily removing the thyrister, measure the 141V for 5 seconds until 150V. Afterwards the appliance plays fine.
• Switches to protection mode (after a few minutes). (part of circuit diagram displayed)
• Bottom linearity faulty. (with circuit diagram extract)
• No RC functions. (part of circuit diagram displayed)
• All presettings disappear after turning on the appliance.
• Vertical waves on both sides of picture. Unstable picture. (+ extract of circuit diagram)
• Picture shifts and jitters depending on picture content.
• Switches to program 1, but no function. Whistles.
• No function, stand-by connection has voltage.
• High-voltage flash-over. (extract of circuit diagram attached)
• Hums and crackling. LED flashes. (part of circuit diagram displayed)
• Red picture (intermittently). (picture attached) (service info for SBR -226710)
• Poor vertical synchronisation. (extract of circuit diagram attached)
• Picture overbright on left hand side with vertical lines.
• The sound cuts out occasionally. Only FM noise is heard through the loud speakers. (extract of circuit diagram attached)
• No picture at start up. Channel storage ok. Sound, colour, contrast and brightness balance are not stored.
• No TXT (intermittently). (part of circuit diagram displayed)
• Safety test after repair.
• No vertical synchronisation. (with circuit diagram extract)
• There is an occasional banging noise, the picture shakes. (+ extract of circuit diagram)
• Switches to protection mode (after a while). (+ extract of circuit diagram)
• Occasionally the channel memory or the preselector do not work. (SBR - 226710 information)
• East-west raster correction fault. (+ extract of circuit diagram) (226710 tips)
• Blank screen (intermittently). (picture attached)
• No picture. Display OK .
• Dark picture. at bottom (after a while). (with circuit diagram extract)
• Very bright raster in the centre of the screen. No video signal content. Top and bottom third of screen are dark. (part of circuit diagram displayed)
• No channel storing.
• Flyback lines. at top (in TXT). (with circuit diagram extract)
• Focus problems. Shuts down (after a few minutes). (+ extract of circuit diagram)
• No audio. (with circuit diagram extract)
• Power supply trips at switch on, producing a fading whistle. (extract of circuit diagram attached)
• Hum in picture. Contrast dependent effect. (with circuit diagram extract)
• Low audio. Distorted audio. (extract of circuit diagram attached)
• Insufficient horizontal and vertical picture aamplitude. Smoke from R3177. (picture attached)
• No tuning. only on certain channels.
• Dark screen. R3186 blows up. What is the value of R3186? (extract of circuit diagram attached)
• Intermittently loses vertical sync. Black line slowly moving up and down picture. Picture and sound OK. (part of circuit diagram displayed)
• Unknown indication in the display, no function.
• All LCD segments are lit. LED flashes abnormally. (picture attached)
• Occasionally picture darkens and at the same time raster disappears. (picture attached)
• No picture. When switched on, display shows 5 (no bottom segment) and EXT4. E3 after a few secs. (picture attached)
• Picture OK but display only shows signs.
• No synchronisation. intermittently. Picture shakes. (extract of circuit diagram attached)
• Squealing from PSU. (part of circuit diagram displayed)
• Dim picture. in TXT. No contrast. in TXT. (picture attached)
• The display reacts but the tuning does not.
• The appliance gurgles occasionally. (part of circuit diagram displayed) (226710 tip from SBR)
• Channel loss at switch on after memorising channels. (+ extract of circuit diagram) (service info for SBR -226710)
• Whistling from PSU. (+ extract of circuit diagram)
• Flashing picture when using RC. OK when operated manually. Reacts ok to vol, brightness and colour. Switches off when no. entered. Display lights briefly then switches to E3. Manual operation OK after switch off. No operation of RC. (part of circuit diagram displayed)
• At switch on there is a loud trumpeting and no picture. (extract of circuit diagram attached)
• No REC and PB. PSU hiccups. (part of circuit diagram displayed)
• Occasionally poor frame sync (line).
• Signal/sync/timebase drive problems.
• Intermittent loss of colour and picture sways. (picture attached)
• No picture, no sound. Appliance squeaks when switching on then stops. BU508 of the line end stage is ok. Yellow capacitor has also already been changed. (extract of circuit diagram attached)
• Poor E/W. Centre of picture is pulled inwards. (+ extract of circuit diagram)
• Slow start-up. (part of circuit diagram displayed) (226710 tips)
• Distorted picture. Snow in picture. (part of circuit diagram displayed)
• Beam limiter problem. (extract of circuit diagram attached)
• Green lines. (picture attached)
• Channel drifts briefly into UHF between approx channel 30 and 37.
• PSU is defective. (with circuit diagram extract)
• Frame foldover & text interference at top of screen. (with circuit diagram extract)
• No picture. after a few seconds. (part of circuit diagram displayed)
• Tripping. (with circuit diagram extract)
• The focusing pot. blows. (+ extract of circuit diagram)
• After switch-on no picture and sound, 88 in display. When mains switch pressed, snow. TXT and stereo LED lights.
• Flyback lines in TXT broadcasts. Upper vertical linearity is defective. (with circuit diagram extract)
• Power supply cuts out suddenly and whistles. Ok if line BU removed. (with circuit diagram extract)
• Non linear picture. (+ extract of circuit diagram)
• Bright picture. Flyback lines. (226710 tips)
• E/W fault. Trips. (with circuit diagram extract)
• Failure of field output chip TDA3650. (part of circuit diagram displayed)
• Field flyback lines visible for a second or so when channel changed. They then disappeared. (with circuit diagram extract)
• Line output transistor fails repeatedly.
• Picture bounces in upper picture third if a poor signal is present at aerial input. Vertical lines twist. (+ extract of circuit diagram)
• Brightness and or contrast don't work or don't work properly.
• No picture on teletext. (extract of circuit diagram attached)
• No adjustment of sound. (part of circuit diagram displayed)
• Fuse 1101 fails continuously. (+ extract of circuit diagram)
• No colour. IC-TDA3562 has been changed with no result. There must be 2-4V on pin 6 but there is only 0.4V. (part of circuit diagram displayed)
• Very loud sound, not adjustable. No display. (226710 tips)
• Picture shakes. at top (intermittently). (with circuit diagram extract)
• K9/K11 band switch.
• No picture. intermittently. HV OK. . (with circuit diagram extract)
• Occasionally noise in TV (like short attempts to start up), picture width variation and display which disappears. (picture attached)
• Screen compressed at the bottom and very quick vertical drift of picture. (+ extract of circuit diagram) (226710 SBR repair tip)
• Starts up gradually. (+ extract of circuit diagram)
• Vertical collapse. (with circuit diagram extract)
• Teletext only shows "P100" flying all over the screen out of sync, or shows a teletext page out of sync.
• The station memory loses the station programming after about 3 weeks.
• The picture appears then disappears. T26 after D6106, varies from 25 to 10Vcc. (part of circuit diagram displayed) (SBR - 226710 information)
• Low contrast. in TXT. (+ extract of circuit diagram)
• Poor audio. only on one channel. (part of circuit diagram displayed)
• One colour missing (intermittently). (extract of circuit diagram attached)
• No start up. PSU goes to protection circuit. (+ extract of circuit diagram)
• How to store personal preferences (PP). (service info for SBR -226710)
• Blanking fails, lines run through and sound is . (part of circuit diagram displayed) (226710 tip from SBR)
• Rectification of IM 84VK049. (+ extract of circuit diagram)
• Snowy raster. (part of circuit diagram displayed)
• East/west correction is defective or the power supply gurgles. (with circuit diagram extract) (SBR - 226710 information)
• TXT-replacement.(4822 212 21008T). (part of circuit diagram displayed) (226710 tips)
• E/W failure,temperature sensitive. (part of circuit diagram displayed)
• Intermittently parallel stripes on one part of the screen. Shock sensitive.
• When switching channels, TV stops for 1 sec.
• Picture is off tune in PB.
• Line tearing. at top. (extract of circuit diagram attached)
• PSU and HV unit switch on, but no display and standby LED lights. No linearity.
• Poor colour (when cold). (part of circuit diagram displayed)
• Interference on channel 2 with TRD 4 system. (extract of circuit diagram attached)
• Picture horizontally unstable. (with circuit diagram extract)
• Vertical foldover at bottom. (+ extract of circuit diagram)
• Conversion from TRD to TRD-ECO.
• Predominance of blue, faint blue flyback lines visible. (part of circuit diagram displayed)
• Difficulties in tuning on channel. (with circuit diagram extract)
• Coloured spots in flat square picture tubes.
• No startup. Banging noise audible.
• Reduced vertical size. (part of circuit diagram displayed)
• No E/W correction. (+ extract of circuit diagram) (service info for SBR -226710)
• PSU switches frequently to protection mode (also when lamp is connected). (picture attached)
• After installing the vertical ICs there are stripes in the top part of the picture. Electrolytic 3300uF is ok. (part of circuit diagram displayed)
• Sparks on the yoke plug. High voltage is 1500Vpp instead of 1200Vpp. Working voltage 130V is ok. (extract of circuit diagram attached)
• Test picture visible in the background in TXT mode. (with circuit diagram extract)
• No STEREO.
• No picture. in UHF. (+ extract of circuit diagram)
• Hum in power supply audible. (+ extract of circuit diagram)
• When switching on, main supply reduces to about 24V and then no function. (226710 tips)
• Picture output IC defective after 2-3 weeks. (extract of circuit diagram attached)
• Only starts up after pressing ON/OFF switch a few times. (picture attached)
• Switches to standby. (extract of circuit diagram attached)
• No synchronisation.
• After it has been replaced line BU blows every 2 to 3 days. (part of circuit diagram displayed)
• No function, 142V is present but R3292 (680R) blows continuously.
• Low audio. (part of circuit diagram displayed)
• Horizontal sychronisation is distorted. (picture attached)
• Picture vibrates horizontally. Broken or intermittently double bar. (picture attached)
• Very loud sound, cannot be adjusted. No display. (+ extract of circuit diagram) (226710 SBR repair tip)
• No display. No channel search. Picture OK . (part of circuit diagram displayed)
• Misty picture. (+ extract of circuit diagram) (service info for SBR -226710)
• No sound or vision and E3 on the display. (with circuit diagram extract) (226710 SBR repair tip)
• No picture just loud trumpeting noise. (extract of circuit diagram attached) (service info for SBR -226710)
• The line end stage transistor 7162 heats up. The base and collector pulses are ok, the transistor blows. (part of circuit diagram displayed)
• Picture too large, E/W indented.
• Appliance functions only when warm. It fails intermittently when cold.
• No picture or sound after spark flashover in the HS cable. (part of circuit diagram displayed)
• Faint raster. (part of circuit diagram displayed)
• After operating for 12-14 days, the line-BU blows. (with circuit diagram extract)
• Poor VCR line synchronisation . (part of circuit diagram displayed)
• Raster shifted upward. Picture OK.
• Line oscillator chip failure after an EHT flashover. (+ extract of circuit diagram)
• Erratic functions. (picture attached)
• Poor vertical synchronisation. Intermittently flyback lines in lower quarter. (part of circuit diagram displayed) (SBR - 226710 information)
• 2R2 resistor always blows. (picture attached)
• No MONO audio. STEREO OK .
• Changing channel. (part of circuit diagram displayed)
• Picture lacks width after 5mins from start-up. Displays E3. (+ extract of circuit diagram)
• East/West fault.
• Horizontal collapse. after warm-up. No E/W correction. intermittently.
• Intermittently picture blanks for approx 1 sec. (part of circuit diagram displayed)
• No picture. (+ extract of circuit diagram)
• Jitter with VCR on freeze frame. (+ extract of circuit diagram)
• Blows components (intermittently). (part of circuit diagram displayed)
• BU508 fails continuously. (part of circuit diagram displayed)
• Intermittent no signals, then will rest to CH1 with volume high.
• Flyback lines. when changing channels. (with circuit diagram extract) (service info for SBR -226710)
• Coloured lines and sloping picture. (+ extract of circuit diagram)
• Searches for channels continuously. (picture attached)
• PSU and line transformer chirp. (part of circuit diagram displayed) (226710 tip from SBR)
• Doesn't switch to standby. Standby LED OK, no display, but picture and sound remains.
• No functions. at start-up. Whistling. at switch-off.
• Inverted E-E display, no picture, no sound. (+ extract of circuit diagram)
• Line tearing in upper third of picture after longer operation. (+ extract of circuit diagram) (226710 SBR repair tip)
• Blurred screen. Shifted tuning. Unable to adjust with fine tuning. Sometimes tuning doesn't lock in on stations.
• Lines in picture. on the left. (with circuit diagram extract)
• The power supply goes to protection circuit. (+ extract of circuit diagram)
• Intermittent loss of sound and vision, with just snow and no channel display. (extract of circuit diagram attached)
• Black screen. Audio OK . (+ extract of circuit diagram)
• Red picture. (picture attached)
• The appliance may cut out occasionally and then there is no more picture or sound.
• Trapezium ininformation. (part of circuit diagram displayed)
• No TXT the indication light lights up. (part of circuit diagram displayed)
• Channel indicators permanently display 88. Hissing from EHT capacitor. (+ extract of circuit diagram)
• Pincushion distortion. (part of circuit diagram displayed)
• Memory loss.
• Vertical lock 1/3 of the way up the screen. (extract of circuit diagram attached)
• PSU hiccups.
• Intermittent or no vertical linearity. (with circuit diagram extract)
• Line output transistor (BU508) defective. (with circuit diagram extract)
• Front display corrupt, all segments lit to a varying degree. (+ extract of circuit diagram)
• No picture just very bright raster at centre of screen. (extract of circuit diagram attached)
• Sometimes no vertical deflection; random cramping at top of picture. (part of circuit diagram displayed)
• EHT arcing.
• Line BU goes S/C every fortnight. (picture attached) (226710 tip from SBR)
• Picture jitters on the upper picture edge. Ok after 5 mins. (extract of circuit diagram attached)
• Memory values for picture, sound and channels are lost. (part of circuit diagram displayed)
• Burn up in E/W correction circuit (R3170, R3175). (extract of circuit diagram attached)
• Whistling. No error display.
• Goes into standby with E3 and a few seconds later goes to function. (with circuit diagram extract)
• Vertical waves when switching from TXT to normal picture.
• After switching on occasional crackling from the speakers. Picture content therefore fails for a short time. Somehow there is still something to recognise on the screen. Line deflection must be present. (part of circuit diagram displayed)
• Switches off by itself.
• TXT-lines in picture for three seconds at switch over. Then perfect picture. (extract of circuit diagram attached)
• Muted audio. after a while. (+ extract of circuit diagram)
• Picture is distorted on top. Flyback lines. Picture changes according to picture content. (part of circuit diagram displayed)
• Black stripes over the whole screen.
• Pictures bows at edges. Width can be adjusted. (picture attached)
• Occasionally thin white lines, picture bounce at the side and top edge.
• Poor RC sensitivity. (part of circuit diagram displayed) (SBR - 226710 information)
• Muted audio. intermittently.
• Tuning voltage blocked on 33V or 0V (TRD sets).
• No TXT. (with circuit diagram extract)
• Sometimes when switched on set gives a squealing noise and no sound or vision. (+ extract of circuit diagram)
• No colour. Audio and picture OK . (part of circuit diagram displayed) (226710 tip from SBR)
• The picture is much too wide, east/west does not control. (part of circuit diagram displayed)
• Picture has shifted inwards in lower picture section. (part of circuit diagram displayed)
• TXT lines at top of picture. (picture attached)
• No sound if transmission is "mono". There is also no sound during stereo-transmission if the mono button is pressed. Otherwise stereo transmission is fine. (with circuit diagram extract)
• Picture-sound-display is intermittent. (with circuit diagram extract)
• Voltages measured on pins IC TDA3650.
• Black streaky lines after a few mins. Completely dark picture after approx 5 mins. (with circuit diagram extract)
• Switches off and on spontaneously, particularly when putting on a video film and when switching over.
• When calling up TXT page, 2nd digit is incorrectly reproduced, yet correct page appears.
• No horizontal deflection. (picture attached)
• Vertical sync remains occasionally halfway down the frame although it locks correctly. (with circuit diagram extract)
• Switches to standby. Motorboating. Switches on and off. (Non-SOPS, IV-B-3) (part of circuit diagram displayed)
• Temporary crackling from both speakers, then picture fails for a short time. Unfortunately fault no longer occurs at the moment. (extract of circuit diagram attached)
• No LCD on front panel. (extract of circuit diagram attached)
• Spontaneous flash over in focus spark gap.
• In the middle of the picture a stripe which is approx 15cm high appears over the entire picture width.
• Vertical problems. (+ extract of circuit diagram)
• Switches to standby after a few hours. Can be switched on again but fault reoccurs. Interim period becomes shorter.
• Starts with E1 and intense fizzling sound. No picture or sound. (part of circuit diagram displayed) (226710 tip from SBR)
• Small picture. Picture height and audio volume vary according to picture content. (extract of circuit diagram attached)
• Focus control replacement. (extract of circuit diagram attached) (226710 SBR repair tip)
• Power supply BU S/C. (+ extract of circuit diagram)
• Only half of picture and there is a lot of light. (picture attached)
• Problems with the vertical deflection, picture folds at the top edge. (extract of circuit diagram attached)
• Normal values for brightness, volume and colour saturation cannot be stored.
• Unstable picture. (+ extract of circuit diagram)
• Dead. No line drive. (extract of circuit diagram attached)
• Peak white bright band approx. 4" across screen. Then set dead. (part of circuit diagram displayed)
• No functions. (extract of circuit diagram attached)
• On/off LED flickering. All front panel symbols light up but no control. (+ extract of circuit diagram)
• No horizontal synchronisation. (with circuit diagram extract) (SBR - 226710 information)
• Blanking valency in picture (black bar in 3/4 of picture). (+ extract of circuit diagram)
• East/west code. The sound disappears, the picture is vague and the appliance constantly arches stations.
• No function or display when first switched on. Starts up OK at second attempt. (+ extract of circuit diagram)
• Loses frame correction slowly. (with circuit diagram extract)
• Only noise the display does not light up.
• Picture synchronization in the top third of the screen. (picture attached)
• Rope effect on the right hand side of the picture. (with circuit diagram extract) (226710 SBR repair tip)
• Noise in picture. (extract of circuit diagram attached)
• Dark picture, also by TXT/Scart. Colour OK. (extract of circuit diagram attached)
• Vertical foldover at top. (picture attached)
• Linearity fault in upper part of screen.
• HT transistor blows continuously (short circuit).
• Shakey picture. No sound on some channels. Appliance starts. (part of circuit diagram displayed)
• Poor E/W adjustment with changes in contrast.
• Too much brilliance of one cathode of picture tube.
• Line transformer installation.
• Power supply in safety mode, 140V=80V. Power supply fails. No result when unsoldering line transformer and loading power supply with a 75W lamp. (part of circuit diagram displayed)
• Horizontal output transistor defective. (with circuit diagram extract)
• Switches on, but no EHT available. Channel number disappears and then "E1" is displayed.
• Normal off air picture is fine but teletext is very dim with hardly any contrast. (picture attached)
• Faint white streaks above the picture. (picture attached)
• Repeat failure of TDA3650 & 26V supply. (extract of circuit diagram attached)
• Defective after lightning. (+ extract of circuit diagram) (SBR - 226710 information)
• BU504 blows after 30 mins. (with circuit diagram extract)
• Vertical fault. Picture is approx 20cm high. Bright background with flyback lines.
• Approx 5cm distortion on top of picture with any station, in cold conditions. (part of circuit diagram displayed)
• In display all segments lit.
• TV picture slightly visible when in TXT mode. (part of circuit diagram displayed) (SBR - 226710 information)
• No picture, only sound present. When appliance is switched off a white line appears.
• Visible flyback lines and colour tints problems. (part of circuit diagram displayed)
• Dark picture (intermittently).
• Display shows functions which were not chosen. (part of circuit diagram displayed)
• On cable reception, stations cannot be tuned or the stations wander off.
• Poor IF gain. (part of circuit diagram displayed)
• E/W adjustment.
• No drive at BU826. (part of circuit diagram displayed)
• Volume too high. Excessive colour and incorrect brightness at switch on.
• Blank raster, turning up A1 control shows frame collapse. (picture attached)
• The picture is too small. The power supply is too weak. (part of circuit diagram displayed)
• E/W fault. (with circuit diagram extract) (service info for SBR -226710)
• Non-linearity on vertical sync. (extract of circuit diagram attached)
• Goes into standby each time channel is changed manually or by the RCU.
• No start-up. Audible noise.
• Vertical linearity defective. (part of circuit diagram displayed)
• Top of picture is non linear with teletext lines. (part of circuit diagram displayed)
• TV starts up but EHT is missing. Programme number disappears, then "E1" appears.
• Distorted picture. (extract of circuit diagram attached)
• Noise line on one side of screen. (picture attached)
• The power supply unit shuts off after some time and squeaks. (with circuit diagram extract) (226710 SBR repair tip)
• All memory-cells on 56. (service info for SBR -226710)
• Blank raster. Audio OK . (extract of circuit diagram attached)
• No start-up. intermittently. Squealing noise. (part of circuit diagram displayed) (226710 tips)
• No picture or teletext, RGB/status line at 2V. (part of circuit diagram displayed)
• Picture intermittently goes to negative or is shifted laterally.
• V resistor 3186 (2R2/raster unit) burns at switch on. (part of circuit diagram displayed)
• Excessive brightness. (extract of circuit diagram attached)
• The appliance cuts out and E3 in the display then everything becomes normal again and after 30 secs the appliance cuts out again. (+ extract of circuit diagram)
• Blanking of the raster, starting at bottom of the picture. (with circuit diagram extract)
• Power supply BU blows. (+ extract of circuit diagram)
• Picture takes 10 mins to appear. (extract of circuit diagram attached) (service info for SBR -226710)
• The sound contains noise, no low pitched sound. (part of circuit diagram displayed)
• Deflection BU fails after approx. 1-2 weeks.
• The TXT quivers when a V6100 tuner is connected. (with circuit diagram extract)
• No brightness. No colour. intermittently.
• Picture collapses in RF every 2 seconds. Picture OK via scart.
• No vertical deflection. (+ extract of circuit diagram)
• Hums and crackles. Sound comes from loudspeaker and chassis. Flashing LED.
• Bright white line in picture, no sound. (extract of circuit diagram attached)
• Rolling picture for 5 secs after switching from VHF to UHF. Poor raster synchronisation.
• No audio. Picture OK . (with circuit diagram extract)
• No picture. Green and pink raster at the top. (with circuit diagram extract)
• No picture. intermittently. (part of circuit diagram displayed)
• Mains switch and speech-music switch.
• Critical adjustment with user controls. Sometimes it works properly when tapping on cabinet.
• Channels "up and down" only work on the RC.
• Stuck in standby. (with circuit diagram extract)
• After about 7 days the vertical endstage IC TDA3650 blows again. All the voltages are ok. (extract of circuit diagram attached)
• Destroys line output transistors. (+ extract of circuit diagram)
• The appliance often becomes intermittent when switched on. (with circuit diagram extract)
• Picture shifts downwards and then comes up again after a few minutes, picture is then o.k., but is round. (+ extract of circuit diagram)
• No start-up. (extract of circuit diagram attached)
• Video and bottom half of scan are missing with extremely bright raster. (extract of circuit diagram attached)
• Occasionally picture runs through (line).
• The line oscillator is unstable, the picture shakes. (part of circuit diagram displayed)
• Replacing line output transistor BU508.
• The vertical lines are ribbed, especially in the test picture. (+ extract of circuit diagram)
• Line output stage transistor BU508 fails approx every 6 days. (+ extract of circuit diagram) (226710 tip from SBR)
• Type of line transistor 7162. (extract of circuit diagram attached)
• Flyback lines. at top. (part of circuit diagram displayed)
• No TXT with the CCT decoder system. (+ extract of circuit diagram)
• No remote control operation on teletext version. (+ extract of circuit diagram)
• Top of picture has non linear scan, ok when appliance has warmed up. (part of circuit diagram displayed) (service info for SBR -226710)
• Picture unstable on certain stations when cold. Also TXT horizontally unstable.
• Switches to standby (after start-up).
• Vertical IC defective after mounting. (part of circuit diagram displayed)
• Code numbers for picture tube prints.
• No power supply regulation. (extract of circuit diagram attached)
• Picture becomes warped. Reacts to brightness and contrast. When there is white in the picture this runs in a line from the left to the right of the picture.
• No tuning, channel no etc. with the standby LED permanently on (sets with 1021 VST module).
• No start up, displays E3. No 13V. (part of circuit diagram displayed)
• There is an occasional beating noise.
• Upper vertical linearity defective. Flyback lines on TXT broadcasts. (extract of circuit diagram attached)
• UPD8049PC SAA063 has been changed. The display shows 80.
• Power supply whistling and the BU508 is S/C. (picture attached)
• Squealing noise. (with circuit diagram extract) (service info for SBR -226710)
• Incorrect TXT, ie. instead of a 6, an 8 will appear, or the appliance goes back to regular picture position. (extract of circuit diagram attached)
• Tuning drifts. Snowy raster. (picture attached) (service info for SBR -226710)
• No image or sound after start up. Does not lock channels. After 1-2 minutes it comes back to normal. (extract of circuit diagram attached)
• No sound or picture. Screen in the black level. (226710 SBR repair tip)
• Switches to standby (after a few minutes). (+ extract of circuit diagram)
• Cycles on/off. after a few minutes.
• No line osc. (with circuit diagram extract)
• No tuning. (extract of circuit diagram attached) (226710 tip from SBR)
• Herringone pattern and upper channels are not accepted when tuning.
• Doesn't lock in on channels or stops but tuned off. (+ extract of circuit diagram)
• The sound goes erratically to max. volume. (part of circuit diagram displayed)
• "88" on the display. No picture. No sound. (extract of circuit diagram attached)
• Processor for TRD4 control panel.
• No audio. OK via SCART . (part of circuit diagram displayed)
• No start-up (when cold). (with circuit diagram extract)
• Switches to protection mode (intermittently). (extract of circuit diagram attached)
• Picture bends at top and vibrates. (extract of circuit diagram attached)
• Muted audio. (with circuit diagram extract)
• Hiccups when changing channels. (part of circuit diagram displayed)
• No function, the 141V power supply voltage is only approx 80V. (+ extract of circuit diagram)
• Whistling noise from FBT. (with circuit diagram extract)
• Vertical line. (+ extract of circuit diagram)
• The colour shimmers or fades. (with circuit diagram extract)
• Arcing. (with circuit diagram extract)
• No picture. Sound available. Intermittently picture appears for 1 sec.
• Wide white bar in the picture, no reception. (part of circuit diagram displayed)
• No start up and humming.
• E/W convex. (226710 tip from SBR)
• Muted audio. Picture OK . (226710 tips)
• Hum in picture. Error disappears after approx10 mins operation.
• Appliance fails. BU508A will become defective and displays E-3. Power supply squeaks. (part of circuit diagram displayed)
• Stereo problems; switching from mono/stereo. Crackling sounds. (part of circuit diagram displayed)
• Rolling picture and warps vertically. (part of circuit diagram displayed)
• Brightness and colour saturation influence each other. (+ extract of circuit diagram)
• Lightning flash; K40 and KT4 are very sensitive to induction voltage. (part of circuit diagram displayed)